NORTH ARABIAN SEA (Jan. 29, 2021) Lt. Joshua Barclay, left, from Ames, Iowa, and Hospital Corpsman 1st Class Christopher Barclay, from San Diego, prepare for surgery during a mass causality drill aboard the aircraft carrier USS Nimitz (CVN 68). Nimitz, the flagship of Nimitz Carrier Strike Group, is deployed to the U.S. 5th Fleet area of operations to ensure maritime stability and security in the Central Region, connecting the Mediterranean Sea and Pacific Ocean through the western Indian Ocean and three critical chokepoints to the free flow of global commerce. (U.S. Navy photo by Mass Communication Specialist 3rd Class Cheyenne Geletka)